A sterile, manually-operated component of a haematological concentrate system designed to administer, in a liquid or spray form, a haematological concentrate typically made at the point-of-care with the patient's own blood/bone marrow, or other blood products (e.g., platelet concentrate, bone marrow aspirate concentrate, thrombin), to an open surgical wound or graft to facilitate haemostasis and healing. The device may have one channel to administer one product, or two channels to co-administer two different products simultaneously in a precise ratio. This is a single-use device.